13 mm Internal Retaining Ring (Bore Circlip), DIN 472
For a 13 mm bore, grooved to 13.6 mm: the internal retaining ring (DIN 472), 1 mm thick. Download it as simplified STEP files.

How these parts are made, and what the levels mean: read the method
- Also searched as: 13 mm circlip
- Model id:
din472-d13
- Standard: DIN 472:2017 · size 13 mm
Files
| Part key | Simplified |
|---|
din472-d13 | STEP |
Dimensions

| Symbol | Name | min | nom | max | Modeled | Rule | Level |
|---|
| s | Ring thickness | | 1 | | 1 | nominal | L1 |
| s_lim | Ring thickness, limits | 0.94 | | 1 | 0.97 | midpoint of min–max | L0 (max: one source) |
| d3 | Free diameter | | 14.1 | | 14.1 | nominal | L1 |
| d3_lim | Free diameter, limits | 14 | | 14.46 | 14.23 | midpoint of min–max | L1 |
| a | Lug height | | | 3.6 | 3.6 | single limit (max), modeled at the limit | L1 |
| b | Radial width | | 1.8 ref | | 1.8 | reference value | L1 |
| d5 | Plier hole diameter | 1.5 | | | 1.5 | single limit (min), modeled at the limit | L1 |
| d2 | Groove diameter | | 13.6 | | 13.6 | nominal | L1 |
| m | Groove width | | 1.1 | | 1.1 | nominal | L1 |
| n | Groove edge margin | 0.9 | | | 0.9 | single limit (min), modeled at the limit | L1 |
Drawing

As a PDF: CC-DIN472-SZ-13.pdf.
The 13 mm internal retaining ring beside the 12 mm and the 14 mm
The 13 mm is number 6, counting from the smallest, of the 17 DIN 472 internal retaining rings published here, from 8 mm to 25 mm.
- Ring thickness (s): 1 mm on the 13 mm internal retaining ring, the same on the 12 mm and the 14 mm.
- Ring thickness, limits (s_lim): 0.94 to 1 mm on the 13 mm internal retaining ring, the same on the 12 mm and the 14 mm.
- Free diameter (d3): 14.1 mm on the 13 mm internal retaining ring, against 13 mm on the 12 mm and 15.1 mm on the 14 mm.
- Free diameter, limits (d3_lim): 14 to 14.46 mm on the 13 mm internal retaining ring, against 12.9 to 13.36 mm on the 12 mm and 15 to 15.46 mm on the 14 mm.
- Lug height (a): up to 3.6 mm on the 13 mm internal retaining ring, against up to 3.4 mm on the 12 mm and up to 3.7 mm on the 14 mm.
- Radial width (b): 1.8 mm (reference) on the 13 mm internal retaining ring, against 1.7 mm (reference) on the 12 mm and 1.9 mm (reference) on the 14 mm.
- Plier hole diameter (d5): at least 1.5 mm on the 13 mm internal retaining ring, against at least 1.5 mm on the 12 mm and at least 1.7 mm on the 14 mm.
- Groove diameter (d2): 13.6 mm on the 13 mm internal retaining ring, against 12.5 mm on the 12 mm and 14.6 mm on the 14 mm.
Other sizes
Documents
Sources
fasten-it-din472, fasteners-eu-din472, hc-maschinentechnik-din472, seeger-din472. Full citations: the method page and this size's datasheet.
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